Dumping device



March 13, 1928. l,662,653

l c. F. YOUNG ET AL l DUMPING DEVICE Filed April 2. 1924 2 Sheets-nees l Figi 1.

March 13, 1928.

Filed Ap Figi 3@ C.F.YOUNG ETAL DUMPING DEVICE ril 2. 1924 2 Sheets-Sheet 2 Patented 'Mal'. 13, 1928 E ,z Y

unirse. efe-rentrerste;

cnennnsfr.' rouiveenn Ent/.form MQ Bras, l orv Covrneron; KENTUCKY; v Assrevons f T o trnnf srrnwenfr IRon'woaKs COMPANY; on Covine'ron, Knirrucxv,` e' Con- PORATION OFKENTUCKY. c

nui/reine DEVICE;

ApplicationledAprl 2, w24. Serial No. 703,742;

u-r invention relates` to devices for dis down behind theV clips 7 lockingv the pins in 55 chargingl materials, and yespecially to unloadplace, Chains 7 are connected to the ends ingvehicles, suchas wagons or motor trucks, of thepi'n members 5, and lead through and -its object is to simplify and increase key-hole shaped slots 3 in the rear end 5 the easeand-satety of operation of such deflanges ot the'bed 3 some distance down from vices,and,especially to permit the driver of theirtops; theotlier ends of these chains 60 avehicle ltoY operate suchl a ldevice thereon being connected to the end-gate e near its entirelyv` from4 the drivers. seat, without upper corners, whilesoine distance down necessity ot leaving1the seat either for disfrom these corners theend-gat'e elias the charging'theloadlor'for returningthe 'des spurs 4 projecting` rearwardly and lateralvicefto'iits loadingfiand hauling position, as ly inwardly. The lower corners of the rear 65 well? asp'erniit` the driver to'drive the vehicle end'ofgth'e bed 3 have the jaws 8 opening' with the device in discharging position. laterally. inwardly, with vertically extend- OtherV objects will appear in` the course of ing openings; these jaws receiving the pivots the'fensuing description. 6 of the end-gate when closed, and the'open- -Veattainfthesefobjectsby the deviceilings receiving the pins 8 which are se- 70 lust-rated, for eXample,'in the accompanying cured tothe bed?) by short chains 8.

drawings,l in whichrlhe front endoic the bed rests, in hauling' Figurel'is apartial'side elevation of a position, Von pedestals 9 at each side of the motor truck enibodyingour invention, in frame 1; and near the rear end of the frame lodngpandhaujngpostong' the bed @has rockers 10 liXed to its bottom, 75 Fig-.Q isa'similar view of the same 1n uneach having a lower curved rocking edge loadingor"dumping.l position; extending` from the ljunction with the bed 3 Y Fig'.A 3 is apartial planview corresponding downwardly land forwardly to a front end to Fig. V1,'the-bottomand front of the bed llprojected down from the bed and having being broken awayto reveal theunderlying a'laterally outwardly projected guide lugV S0 mechanism; 'f l2. This rocking Aedge or surface bears on Figi 4c 'isa partial front lelevation corthe top Yoffthe' respective traine side, and respondingto Fig. 2; when the bed V1s allowed to tilt it travels 3o Fgj is a detail perspective view of the rearwardly on the frame by the rolling of end'gate and its supporting andlocking dethis lrocker 10 at 'each side; and also, the bed e5 vices; and as'awho'le is lowered, as well as tilted, in'

Fig; 6 is av similar vie'w of vthe detent for they operation of unloading. holding the'bed inhauling position; At the rear end of each side of the trame Thefehassisftrame 1 supports thedrivers 1 is an upstanding retainer member 13; and

seatfstru'cture 'at thetront (F -ig.-i1') to the latches 14 for the lower side of the'end-gate eo rear of which isthe bed8,vwhich is of the e consist ot longl bars with upturned rear. usual elongated box-like formation, con ends 15, thel inner edges otwhich ends 15 siderablywider than-the'chassis 'trame and engage Athe lower edge ,part vot the end-'gate 40 eXtending'some 'distance rearwardly ofthe 4'; the outer' edges of these ends 15 being rear l/wlie'els Its rear end has 'the end-gate curved or beveled to allow the lower edge of 95 4f which hasv 'at its upper corners the ears the end-gate to depress the rear ends of 5 and at its lower corners the fpivots 6. the latches 14' as it' swings shut on its upper The upper corners oi' the rear` end ot the pivotal supports constituted by the pins 5 bed have"brackets 7 with openings with in lthe brackets 7, by which action the front whichthe'ears 5 register when theend-gate ends of the latches 14 swing up, as the 10e is closed; the ears and these openings relatchesare'tulcrumed a short distance fromV ceivingf-pins having members l5" bent at' theirtront endsin bracket 1G depending from right angles" to the vpins. The brackets -7 the bottom of the bed 3. The front ends of the straddle rtlier ears 5f, and on their'outerA memlatchescle are within the retainer members bers have 'clips'fV extending'across'jus't be- 13.- The parts are so proportioned that the ina lowtthe openings; sothatthepins 5 may tront-endsof the latches 14 willstrike thel befinsertle'd-'with theirmembers '5" swungl upper ends of the retainer members 13 just up,4v and-then thesemembers may-be swung as'the bed 3 reaches its hauling position and f they are no longer retained by the upper ends of these members; so that the latch-es have their rear upturned ends swung down away from the end-gate 4, allowing the end gate to swing open by its own weight and by that of such load as bears against it inside the bed.V Short tension coil springs 14 are stretched from the bed 3 to the respective latches 14 slightly to the rear of the .fulcrum brackets 16, thus yieldingly holding "l the latches in latching position until overcome by the engagement with the frame 1 i' just described.

Adjacent to the downwardly projected forward end of each rocker 10 a guide bracket 17 is fixed to the frame 1, standing up later` ally outward from the respective rocker 10 and having a curved slot 18 and an upper rearwardly projected locking lug '19 to receive under it the depending nose 20 which the rocker 10 has some distance back from its front end, when the bed 3 is in hauling position as shown in Fig. 1. The major upper part 21 of the curved slot 18 of the bracket 17 curves rearwardly in its upward extent, conforming to the path of travel of the guide lug 12 of the rocker 10; but a short lower part 22 of this slot curves oppositely, so that as the lug 12 enters this part 22 the nose 20 is permitted to gounder the guide-bracket locking lug 19, as the bed tilts forward; or, as the bed starts backward, the travel of the lug 12 in this part 22 permits the nose 20 to pass from under the locking lug 19. It will be understood that the parts are made with the slight clearance required for these actions; such "clearance being negligible in proportion to the size and range of operation of the device as a whole. The parts may be cast or forged suiliciently accurate, without machining, thus being adapted to be produced economically. A. bar 10 connects the ends of the rockers.

Some distance forward from the rocker 10 and its guide just described, the toggle 23 has upper links 24 pivoted to the bottom of the bed 3, and its lower links 25, straddling upper heads of studs 26 which slide up and down in guide plates 27 fiXedvto the respective sides of the frame 1. Below these plates 27 compression springs 28 are coiled around the studs 2G, confined between the bottoms of the plates 27 and nuts 29 screwed on the lower ends ofthe studs, to resist upward sliding of the studs. The T-shaped connector 30 has its transverse member 31 pivoted in intermediate parts of the lower links 25 of the toggle 23, and has its stem member eX- tending forward and screwed into a connecting head 33, with a lock nut 34 lockingit in adjusted position in this head 33.

The front end of the head is pivoted to the lower end of the manipulating lever 35, fulcrumed on a transverse pin 36 in the upper ends of standards 37 which are fixed to the frame 1 and straddle the lever 35. The upper part. of the lever 35, above its fulcrum 36, is much longer than its lower part below the fulcrum, and is bent backward to incline over the front of the bed 3 when the parts are in loading and hauling position with the toggle collapsed and the lower end of the lever 35 swung forward. The detent 38 is made up of side members joined along their rear edges by transverse parts and st-raddling the upper part of the lever 35 some dis tance down from its upper or handle end, with a fulcrumpin 38 through its side members and the lever 35, so that this detent may swing its lower end 39 over the front rim of the bed 3 in hauling position.V The upper end part 4() of this detent 38 is suitably shaped to form a handle;the side members of the detent, where they continue intol this handle part 40, being joined by a transverse part in front of the lever handle, affording ample surface for engagement of the hand of the operator to swingthe lower part 39 of the detent forward offl the bed 3 while grasping the lever 35 to pull the upper part of the lever forward and thus swing its lower A member back, straightening the toggle 23 as later will be described. A fiat 4spring 39 has its lower end lixedto the lower transverse part of the lower member 39 of the detent, and its upper end bearing against the rear edge of the lever 35; thus yielding-ly holding the lower part 39 of the detent-over the bed until overcome by the pressure of the operators hand. Above the fulcrum 38, the detent engages the rear edge of the lever 35 with one of its transverse parts 41, preventing the lower part 39 from swinging tooA far backward.

The front end of the bed 3 has a handle 42 fixed to its middle, within easy reach of the operator in the seat structure 2, when the bed is in its completely backward tilted or dumping position. y

The driver, without leaving the seat, merely turns around and reaches over to the lever 35, at once releasing the det-ent 38 and pulling the lever 35, starting the toggle 23 toward alinement, and tending` to raise they front part of the bed 3 and allowing it'to roll backward and downward on itsrockers 10, disengaging the nose 20 fromthe lug 19 as before described. The bed 3 and itsV load gain momentum slowly and gradually, avoiding any danger to the operator, whose hand,

grasping the lever 35, has traveled far forward away from the bed by the time the front end of the bed rises past the point initially occupied by the hand. The dumping is completed when the toggle 23 becomes alined, as in Figs. 2 and 4; this toggle then becoming` at once a brace against downward forward return of t-he bed, and a tension member preventing further backward tilting of the bed. 1n coming thus into tension, the toggle is cushioned by the spring 28, so that undue shock and noise are avoided. At this point, the end-gate 4 is unlatched and swings open, as before described.

Although the alined toggle 23 thus holds the bed firmly against forward return, the

operator now may push the lever 35 back.

ward, pulling the toggle 23 out of alinement and starting the bed, now empty, forwardV and downward toward reloading and hauling position. Complete return of the bed to this position is best accomplished, after this initial actuation by the toggle, by the operator grasping the rim of the bed, or the handle 42 thereon, and pulling forwardly and downwardly thereon with one hand, while the other hand pushes backward on the lever 35. As the bed reaches its position down on the forward pedestals 9 again, the locking nose 20 of the rocker 10 again engages under the locking lug 19 of the guide bracket 17, locking the rear part of the bed to the frame 1; and the detent 38, as soon as released by the operators hand, swings over the front end of the bed, locking the front of the bed to the frame 1. Just previous to this, the end-gate 4, having swung shut, is latched by the latches 14 in the manner before described. i

When objects longer than the bed are hauled, such as lumber, steel bars and the like, the end-gate is swung down on its lower pivots 6 and held by the chains 7 held in their upper parts by catching in the keyhole shaped slots 3. In dumping, such 0bjects simply strike the ground with their rear ends, and the vehicle is driven forward from under them. The spurs' 4 may have the chains 7 engaged around them while the end-gate hangs on its upper pins 5', unlatched and partly opened under the restriction of these chains when the bed is dumped, for scatering the load, as in distributing material over a road, for example. The facility with which the driver may dump the bed 3 by the use of one hand while driving with the other hand, whether the vehicle be motor driven or drawn by an animal, is of especial advantage in unloading such long materials, or scattering loose material, as permitted by the various adjustment-s to the end-gate just described. Either in such cases, or in ordinary haulage of loose materials that may be dumped from the bed, such as coal, sand, gravel, bricks or the like, it is not necessary for the driver to leave the seat, either to open or close the end-gate, or to tilt or return the bed. As a coal delivery device, our invention has the advantage of simplicity and lightness, as compared with heavy powerdumped trucks, permittingsmaller amounts to be delivered economically. ln delivering such long materials as mentioned, our invention effects a great saving of time and labor compared with removing such material one or a few pieces at a time, necessitating leaving the seat, and often requiring a helper for the driver, as such work usually has been performed.

Although we have illustrated and described somewhat speciiically one example of our invention, which we prefer, we do not wish to be understood as being limited to such precise showing and description, but, having thus fully described our invention, as is required,

What we claim as new and desire to secure by Letters Patent is:

1. In a device of the character described, a support, a bed having a rocker on said support, said rocker having one end projected away from said bed, a compound-curved guide on said support, engaged by said end, and mutually engaging means on said rocker and said guide, respectively, engaging and disengaging during travel of said end in one of the curved parts of said guide, to lock said bed to or unlock said bed from said support.

2. In a device of the character described, a support, a bed having a rocker on said support said rocker having one end projected away from said bed, and a guide on said support having a curved portion receiving said projected end and conforming substantially tothe rocking travel of said projected end, and having an oppositely directed curved portion receiving said end as it approaches said support, said rocker and said guide having mutually engaging means for locking said bed to said support, engaging and disengaging during travel of said projected end of said rocker in said oppositely directed curved portions of said guide.

CHARLES F. YOUNG. EDMOND M. RIES. 

